Gate-valve



G. F. WEBER.

GATE VALVE.

APPLICATION FILED 1ULY 13.1911.

' 1 ,32L990. I Patented Dec. 16, 1919.

S-SHEETS-SHEET 1.

WITNESSES: INVEIYTOR $0. (4&4

s. F. WEBER.

GATE VALVE.

APPLiCATlO-N.HLED JULY 13,1917.

Patented Dec. 16; 1919.

3 SHEETS-SHEET 2- 6. F. WEBER.

GATE VALVE.

APPLICATION FILED 1ULY13,1917.

1,324,990. Patented Dec. 16, 1919.

3 SHEETS-SHEET 3.

UNITED STATES 'PATNT OFFICE.

GEORGE F. WEBER, 0F NEWARK, NEW JERSEY.

GATE-VALVE.

Application filed July 13, 1917.

To all whom 2'25 may concern:

Be it known that I, GEORGE F. WEBER,- a citizen of the United States ofAmerica, residing at Newark, in the county of Essex and State of NewJersey, have invented a new and useful Improvement in Gate- Valves, andhereby declare the following to be a full, clear, and exact descriptionof the same, reference being had to the accompanying drawings, formingpart of this specifi' cation.

My invention relates chiefly to such gate valves operated by means of ahand lever which is connected to the gate proper by a short shaft aboutwhich the gate as well as the hand lever swing in parallel planes; butwith slight mechanical alterations my device could also be applied toscrew oper-v ated valves.

The objects of my invention are to simplify the construction of suchvalves as well as to reduce the over-all length of the valve body byreducing the thickness of the gate. Another object of my invention is toreduce the tendency of the gate pads to cant while sliding on theirseats, when the valve is being operated and at the same time to maintainthe self grinding and cleaning features desirable in such valves.

In the accompanying drawings:

Figure 1 is a plan of the complete valve with the cover removed, showingthe gate in the open position.

Fig. 2 is a sectional elevation of the complete valve taken at rightangles to Fig. 1, but with the gate in the closed position.

Fig. 3 is a plan of the gate lever.

Fig. 4 is a sectional elevation of the gate lever with the gate pads inposition, taken at ri ht angles to Fig. 3.

Fig. dis a common commercial type of such valves shown in longitudinalsection for comparison, and for more clearly pointing out the featuresof advantage of my invention.

Fig. 6 is a section of the gate lever in its simplest form, as well as adifferent con struction of the gate pads.

Fig. 7 is an elevation of the gate lever showing a slightly differentarrangement than the previous illustrations.

Like letters of reference denote like partsin the drawings andspecification.

Substantially the valve consists of the body A shown here constructed ofthree parts, and provided with hubs or bosses for Specification ofLetters Patent.

Patented Dec. 16', 1919.

Serial No. 180,474.

receiving the pipe, also the guides B, for guiding the gates, whichguides are faced off in the same plane with the gate seats C so as toinsure proper alinement of the gate pads in any position of the latter.

The gate pads I) are provided with necks, which telescope each other,and also loosely engage with the gate levers E as shown in detail inFig. 4.

The gate lever E which is provided with the squarehole F to slip overasquared projection on the spindle G, consists of one or more sheet metalleaves, which are corrugated for a part of their length. Thesecorrugations are slightly compressed between the backs of the gate padswhen the latter are assembled between their seats or guides in the valvebody, and therefore act as springs which secure proper contact betweenthe pads and seats or the pads and guides in the closed as well as openpositions.

The spindle G passes through the stuffing box H to prevent leakage, andis provided with the thrust collar I so it will not be blown out byinternal pressure.

To the outer end of the spindle the hand lever J is attached, by meansof which the valve is operated.

By telescoping the necks of the gate pads, I am enabled to reduce theoverall thickness of the whole gate, and at the same time I can use avery thin gate lever without the danger of having the gate pads slide byeach other, which could happen if the square hole in the lever or theprojecting square on the spindle should become Worn.

By referring to Fig. 5 it will be seen that the common construction doesnot possess these advantages, also that the excessive thickness of thegate is necessary in order to find room for the coiled spring K. Ifdesirable I could dispense with the telescoping necks on the gate padsand use the construction shown in detail in Fig. 6. In this constructionI would use the pin L to keep the gate pads in alinement with eachother.

To operate the valve, the hand lever J is swung in the are of a circle.This motion is transmitted to the gate lever by means of the spindle G,and the gate is thus swung between the valve seats for the closedposition or to one side of the seats between the guides for the openposition, thus leaving a clear opening for the fluid to pass through thevalve, as will be apparent to those skilled in the art, and familiarwith the purpose to which such valves may be applied.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. A gate valve, comprising a casing, having valve ports for theinduction and eduction of a fluid, a valve seat surrounding said ports,guides adjacent to said ports, gate pads slidably suspended between saidports, said gate pads being provided with necks which loosely engagewith a lever, said lever consisting of a thin sheet corrugated in such amanner as to act as a spring between the valve pads for the purpose ofsecuring proper contact between said pads and the valve seat or theguides, and means for operating said lever from the outside of the valvecasing for the urpose specified.

2. A gate va ve, comprising a casing having valve ports for theinduction and eduction of a fluid, valve seats surrounding said ports,guides adjacent to said valve seats, gate pads slidably suspendedbetween said ports, there being a lever provided having suitableconnection with said gate pads for sliding said gate pads within thespace between said valve ports and between said guides; said leverconsisting of laminated sheets of metal having one or more corrugations,which latter press against the backs of said gate pads for the purposeof exerting spring pressure against said pads, for keeping them incontact with the valve seats or guides, and means for operating saidlever from the exterior of the valve casing for the purpose heretoforeset forth.

In testimony whereof I afiiX my signature in the presence of theundersigned two witnesses.

GEORGE F. *VVEBER. Witnesses:

H. E. A. RAABE, J. C. TRUSDELL MOORE.

